linux-kernel - [PATCH 5/6] ARM: dts: aspeed: mtmitchell: Add LEDs

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Message-ID: <20240801091217.1408809-6-chanh@os.amperecomputing.com>
Date: Thu,  1 Aug 2024 09:12:15 +0000
From: Chanh Nguyen <chanh@...amperecomputing.com>
To: Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...id.au>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org,
	OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
	Open Source Submission <patches@...erecomputing.com>
Cc: Phong Vo <phong@...amperecomputing.com>,
	Thang Nguyen <thang@...amperecomputing.com>,
	Quan Nguyen <quan@...amperecomputing.com>,
	Chanh Nguyen <chanh@...amperecomputing.com>
Subject: [PATCH 5/6] ARM: dts: aspeed: mtmitchell: Add LEDs

Add LED nodes as the gpio-leds devices. They are led-bmc-ready,
led-sw-heartbeat, led-identify, led-fault, led-fan-fault, led-psu-fault

Signed-off-by: Chanh Nguyen <chanh@...amperecomputing.com>
---
 .../aspeed/aspeed-bmc-ampere-mtmitchell.dts   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
index 119e82637023..093b746c010f 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
@@ -113,6 +113,37 @@ vga_memory: region@...00000 {
 		};
 	};
 
+	leds {
+		compatible = "gpio-leds";
+		/*
+		 * Use gpio-leds to configure GPIOW5 (bmc-ready) pin to be reseted when
+		 * watchdog timeout.
+		 */
+		led-bmc-ready {
+			gpios = <&gpio0 ASPEED_GPIO(W, 5) (GPIO_ACTIVE_HIGH | GPIO_TRANSITORY)>;
+		};
+
+		led-sw-heartbeat {
+			gpios = <&gpio0 ASPEED_GPIO(N, 3) GPIO_ACTIVE_HIGH>;
+		};
+
+		led-identify {
+			gpios = <&gpio0 ASPEED_GPIO(S, 3) GPIO_ACTIVE_HIGH>;
+		};
+
+		led-fault {
+			gpios = <&gpio0 ASPEED_GPIO(P, 4) GPIO_ACTIVE_HIGH>;
+		};
+
+		led-fan-fault {
+			gpios = <&gpio_expander1 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-psu-fault {
+			gpios = <&gpio_expander1 1 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
 	voltage_mon_reg: voltage-mon-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "ltc2497_reg";
-- 
2.43.0